Manila
Philippines
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Manila, Philippines

A small stream and beautiful garden parks near the city of Manila, Philippines, on a partially sunny day
A small stream and beautiful garden parks near the city of Manila, Philippines, on a partially sunny day
The first month of the autumn, Septiembre, is still a hot month in Manila, Philippines, with average temperature ranging between max 30.6°C (87.1°F) and min 24.5°C (76.1°F).

Temperature

In Manila, Philippines, the average high-temperature is relatively the same as in Agosto - a still tropical 30.6°C (87.1°F). In Manila, Philippines, the average low-temperature is 24.5°C (76.1°F).

Heat index

The average heat index in Septiembre is evaluated at a torrid 39.9°C (103.8°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'apparent temperature', 'feels like', or 'felt air temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Additional factors like differences in body mass, height, and shape, clothing, metabolic differences, and activity influence one's weather impression. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

In Manila, the average relative humidity in Septiembre is 81%.

Rainfall

In Septiembre, in Manila, the rain falls for 20 days. Throughout Septiembre, 334.1mm (13.15") of precipitation is accumulated. Throughout the year, there are 143 rainfall days, and 2025.7mm (79.75") of precipitation is accumulated.

Sea temperature

In Septiembre, the average sea temperature is 28.7°C (83.7°F).
Note: For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

Daylight

The average length of the day in Septiembre is 12.2h.

Sunshine

The average sunshine in Manila is 4.4h.

UV index

Months with the highest UV index in Manila are Febrero through Septiembre, with an average maximum UV index of 12. A UV Index estimate of 11, and higher, represents an extreme health hazard from unprotected exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 12 transform into the following instructions:
Practice all-important precautions. Light skin people may get burned in less than 5 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. A broad-spectrum sunscreen of SPF 30+ should be liberally applied and re-applied every two hours, and immediately after an outdoor workout or a swim. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.

What is the temperature in Septiembre in Manila?

In Manila, in Septiembre, the average high-temperature is 30.6°C (87.1°F), and the average low-temperature is 24.5°C (76.1°F). The average heat index (a.k.a. 'apparent temperature', 'feels like'), that calculates temperature value influenced by the moisture in the air, in Septiembre is calculated to 39.9°C (103.8°F).

What is the average humidity in Septiembre in Manila?

In Septiembre, the average relative humidity is 81%.

How much does it rain in Manila in Septiembre?

In Septiembre, in Manila, the rain falls for 20 days. Throughout Septiembre, 334.1mm (13.15") of precipitation is accumulated.

What is the water temperature in Septiembre in Manila?

In Manila, in Septiembre, the average water temperature is 28.7°C (83.7°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

What is the average length of the day in Septiembre in Manila?

The average length of the day in Septiembre is 12.2h.

How long on average sun shines in Septiembre in Manila?

In Septiembre, the average sunshine in Manila is 4.4h.

What are the months with the highest UV index in Manila?

Febrero through Septiembre, with an average maximum UV index of 12, are months with the highest UV index.

How high is the UV index in Septiembre in Manila?

In Manila, Philippines, the average daily maximum UV index in Septiembre is 12. A UV Index reading of 11, and higher, represents an extreme health vulnerability from the exposure to the Sun's UV rays.
Average temperature in September - Manila, Philippines
  • Average high temperature in September: 30.6°C

The warmest month (with the highest average high temperature) is May (33.4°C).
The month with the lowest average high temperature is January (29.5°C).

  • Average low temperature in September: 24.5°C

The month with the highest average low temperature is May (25.7°C).
The coldest month (with the lowest average low temperature) is January (22.3°C).

Average humidity in September - Manila, Philippines
  • Average humidity in September: 81%

The month with the highest relative humidity is August (83%).
The month with the lowest relative humidity is April (64%).

Average rainfall in September - Manila, Philippines
  • Average rainfall in September: 334.1mm

The wettest month (with the highest rainfall) is August (476.3mm).
The driest month (with the lowest rainfall) is February (7.3mm).

Average rainfall days in September - Manila, Philippines
  • Average rainfall days in September: 20 days

Months with the highest number of rainy days are July and August (22 days).
The month with the lowest number of rainy days is February (2 days).

Average sea temperature in September - Manila, Philippines
  • Average sea temperature in September: 28.7°C

The best month for swimming (with the highest average sea temperature) is May (29.8°C).
The coldest month (with the lowest average sea temperature) is February (27°C).

Average daylight in September / Average sunshine in September - Manila, Philippines
  • Average daylight in September: 12.2h

The month with the longest days is June (Average daylight: 13h).
The month with shortest days is December (Average daylight: 11.3h).

  • Average sunshine in September: 4.4h

The month with most sunshine is April (Average sunshine: 8.6h).
Months with least sunshine are July and August (Average sunshine: 4.3).

Average UV index in September - Manila, Philippines
  • Average UV index in September: 12

Months with the highest UV index are February, March, April, May, June, July, August and September (UV index 12).
The month with the lowest UV index is December (UV index 9).